IMS pseudo-registration
US12021904B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2021 |
| Grant date | Jun 25, 2024 |
| Priority date | — |
| Expiry date | Feb 15, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L65/1045
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A user equipment (UE) can attempt to register with an IP Multimedia Subsystem (IMS) that includes Call Session Control Functions (CSCFs), such as a Proxy CSCF (P-CSCF), an Interrogating CSCF (I-CSCF), and a Serving CSCF (S-CSCF). In situations in which IMS registration procedures may otherwise fail for the UE, due to an unreachable I-CSCF and/or S-CSCF, a P-CSCF can pseudo-register the UE with the IMS by informing the UE that the UE is registered with the IMS. If the UE attempts to initiate a service via the IMS while being pseudo-registered with the IMS, the P-CSCF can instruct other IMS elements to accept the UE and provide the service to the UE even though the UE is not fully registered with the IMS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.